Home / 20,737,287.20-31,090,378.80-10,647,149.60

Finding the Fourth Proportional to 20,737,287.20, 31,090,378.80 and 10,647,149.60

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Solution

The fourth proportional to 20,737,287.20, 31,090,378.80 and 10,647,149.60 is: 15,962,739.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737,287.20 : 31,090,378.80 = 10,647,149.60 : x
  2. Step 2: Convert to fraction form
    20,737,287.20/31,090,378.80 = 10,647,149.60/x
  3. Step 3: Cross multiply
    20,737,287.20x = 31,090,378.80 × 10,647,149.60
  4. Step 4: Simplify right side
    20,737,287.20x = 331,023,914,204,268.50
  5. Step 5: Solve for x
    x = 331,023,914,204,268.50/20,737,287.20
  6. Step 6: Final answer
    x = 15,962,739.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.